Percy Jackson was sixteen during the second titan war, but an ancient curse Kronos attempted to use backfired and turned young Percy back into his thirteen-year-old self. The second giant war was no better as Gaea, in her final moments, placed a curse on the young hero, turning him into a girl. Due to a power greater and older than their own, the gods could do nothing to ease Percy's suffering. Meanwhile, a new conflict is brewing in the mortal world. The mist is wearing thin and more people are growing suspicious about the demigods. Not only this but the camps are seeing less and less new campers and the superheroes that guard the mortals are having to face threats they are unable to hurt. The gods once again call upon hero Percy Jackson to save the day, placing the hero in the middle of the problem, a city guarded by a man in a bat suit. Demigod instincts keep Percy alive but it's not hard to find out what's lying underneath the surface of the city. Blessed with a gift from the Olympians, Percy is able to enter the underbelly of Gotham during the night, while trying to balance a new life during the day. Every day the clock is ticking, only nobody knows when it's going to stop.